Thallus as for but much thinner in texture, with upper surface plicate-ridged following pattern of venation below, pale greyish-green to dark red-brown. Lower surface whitish, veins narrow, 0.1-0.5 mm, raised, pale to dark red-brown. Rhizines simple, 2-3 mm long, rarely to 8 or 10 mm, pale buff to dark brown, rarely subfasciculate, with an anchoring squarrose tuft. Apothecia on ascending marginal lobules, round or ellipsoid to reflexed, disc red-brown to dark brown-black. Ascospores fusiform-acicular, pale yellowish, 3-5-septate 50-65 × 3-4 µm. Chemistry: TLC nil.